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DateFri, 19 Mar 2004 23:04:45 +0300
FromHans Reiser <>
SubjectRe: True fsync() in Linux (on IDE)
Chris Mason wrote:

>On Fri, 2004-03-19 at 14:36, Hans Reiser wrote:>> >>>I hope I am totally off-base and not understanding you....  Please help 
>>me here.>> >>>>Lets look at actual scope of the problem:>>filesystem metadata>filesystem data (fsync, O_SYNC, O_DIRECT)>block device data (fsync, O_SYNC, O_DIRECT)>>Multiply the cases above times each filesystem and also times md and
>device mapper, since the barriers need to aggregate down to all the
>drives.>>In other words, just fixing fsync in 2.4 is not enough, and there is
>still considerable development needed in 2.6.  Maybe after all the 2.6
>changes are done and accepted we can consider backporting parts of it to
>2.4.>>-chris>>>>> >
In 2.6 does fsync always insert a write barrier when the metadata 
journaling option is set for reiserfs?

-- 
Hans

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